Linux文件编程demo3文件写入操作编程.c

原创于 2024-12-08 19:15:00 发布 · 148 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#linux #c语言 #Linux系统编程

Linux系统编程专栏收录该内容

19 篇文章

订阅专栏

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>

int main()
{
	int fd;
	char *buf = "longhaiyang heng ai sasa";
	fd = open("./file1",O_RDWR);
	int dd;
	
	if(fd == -1){
			printf("open faild\n");
			fd = open("./file1",O_RDWR|O_CREAT,0600);
			if(fd > 0){
				printf("creat fial1 successful\n");
			}
	}
	dd = write(fd,buf,strlen(buf));
	printf("%d\n",dd);
	close(fd);
	
	
	return 0;
}```